South Korean director Park Chan-wook at the Fantastic Fest film festival at the Alamo Drafthouse South Lamar on Sept. 22. The filmmaker was on hand to introduce his new movie “The Handmaiden.” ALYSSA VIDALES/AMERICAN-STATESMAN

Park Chan-wook paces around the small karaoke room at the Alamo Drafthouse South Lamar. Given the savagery of the South Korean filmmaker’s increasingly legendary “Oldboy,” one of the gnarliest tales of revenge ever lensed, you’d perhaps think he was pacing “like a caged tiger” or “a man imprisoned” or some such nonsense.

Nope. Just a bad back.

Park, whose “Sympathy for Mr. Vengeance” Tim League himself has said was a direct influence on starting Fantastic Fest, is in town for the festival with his new film, “The Handmaiden,” which is based loosely on Welsh author Sarah Waters’ 2002 novel “Fingersmith.” Park and his frequent writing partner Chung Seo-kyung move the story from Victorian England to Japanese-occupied Korea in 1930s.

And yes, some small spoilers follow.

“The Handmaiden” follows a pickpocket named Sook-hee (Kim Tae-ri) who is ordered by the con man leader of her crew, Count Fujiwara (Ha Jung-woo), to get herself hired as a servant to the wealthy heiress Lady Hideko (Kim Min-hee) so Fujiwara can ingratiate himself with Hideko and steal her wealth.

Park says he changed the setting for very specific narrative reasons. “It is a story about these two women falling in love,” Park says. “The first hurdle in their relationship is class. The second: the fact that they are deceiving each other. Thirdly, the fact that they are of the same sex. These are the three elements getting in the way of their love.”

In moving the story to Japanese-occupied Korea, Park was able to add a few more elements.

“They are now of different nationalities, two different nations that are opposed to each other, and they have to overcome this animosity as well,” Park says. “I added on top of that the age difference between the two characters. There is more of a gap between the two in the movie than in the novel. In Asian cultures, age difference adds a bit of hierarchy. All of these are hindrances for these characters to achieve love as equals.”

Park adds that the topic of Japanese-occupied Korea is still a delicate one: “Because it’s a touchy subject,” he says, “it’s not properly dealt with in mainstream cinema.”

Then again, it also allowed for Park to introduce the character of Uncle Kouzuki, a Korean collector of rare erotica who is posing as Japanese. Kouzuki lives in a bizarre home (literally one half is a European mansion, the other half is a traditional Japanese house) and is a key figure in the complicated narrative

“Kouzuki is basically a Japanese sympathizer, and his presence is felt throughout the film,” Park says. “Even in the scenes he is not there, because he has designed this house with those philosophies. He is worshiping the Japanese and Western culture filtered by the Japanese that has made it into Korea.”

Explicit but never pornographic, the sexiest scene might be the least conventionally hot, when Sook-hee files down her mistresses tooth while the latter takes a bath.

Park says this was a key scene for him deciding to make the movie. “They were clothed in the book, but I could imagine the sound of the thimble (used to file the tooth) and I could imagine the characters in such proximity that they could hear each other’s breaths and heartbeats,” Park says. “I wanted to see this scene in a film.

“It is such a sensual moment and I wanted to amplify it a bit by moving it to the bath with the steam and the flowers all around. These two women are shy, they will avert their gaze from each other. But it is a scene about that moment when you are taken by somebody. Your heart is beating because you have fallen head over heels for somebody so quickly. It is a moment of emotional tremor.”